Chapter 2 Study Deck

Question 1

Orbit

Answer 1

Path an object makes when it revolves around another

Question 2

Revolution

Answer 2

A complete journey around the sun. Earth takes 365 1/4 days a year to complete a revolution

Question 3

axis

Answer 3

Imaginary line between the north and south poles. Tilted relative to orbit

Question 4

Equinox

Answer 4

Everywhere on Earth night and days are nearly the same length

Question 5

Solstice

Answer 5

Longest day i one hemisphere and the shortest in the other

Question 6

Rotation

Answer 6

A complete turn. Earth takes nearly 24 hours to have a full rotation

Question 7

Time zones

Answer 7

Each time zone is one hour apart from each other. 24 time zones. almost 1000 miles per time zone

Question 8

Core

Answer 8

The center of the earth 2 Parts inner and outer (5000*F)

Question 9

inner core

Answer 9

Solid because of pressure

Question 10

Outer core

Answer 10

Hot liquid metal

Question 11

Mantel

Answer 11

Largest section of earth, middle layer, Solid but like melted butter so it can flow

Question 12

Crust

Answer 12

Outer layer, thinnest, approximately 100 km deep

Question 13

Atmosphere

Answer 13

Thick layers of gasses in the air, includes oxygen

Question 14

Landforms

Answer 14

25% of Earth is surface land, processes beneath earths surface forces the crust up and forces on the surface forces the crust down

Question 15

Water

Answer 15

75% of earths surface is water. oceans hold about 97% of earths water. ocean water is salty. fresh water frozen in ice around the south and north poles. a tiny portion of fresh water is unfrozen

Question 16

Weathering

Answer 16

Breaks down rocks into tiny pieces

Question 17

Erosion

Answer 17

Water, ice, or wind remove small pieces of rock

Question 18

Chemical Weathering

Answer 18

Rocks are broken down with rainwater or acids with rainwater

Question 19

Mechanical Weathering

Answer 19

Moving water or ice or wind breaks rocks

Question 20

Plateau

Answer 20

Large mostly flat area that rises above the surrounding land

Question 21

Valleys

Answer 21

Stretches of low lands between mountains or hills, rivrs often from valley

Question 22

Deposition

Answer 22

Process of depositing of depositing eroded material by water carrying it. Creates land forms like sandy beaches

Question 23

Plains

Answer 23

Large areas of flat or gently rolling land

Question 24

Delta

Answer 24

River that spreads out near a seabed on a plains normally

Question 25

Plate Tectonics

Answer 25

States that Earth’s crust is made into plates

Question 26

Plate

Answer 26

Plates include continents along with parts of continents and with parts of the ocean floors

Question 27

Magma

Answer 27

Almost melted rock

Question 28

Faults

Answer 28

often near boundaries between plates, large cracks in the earth’s surface.